Fly field frequency control is a key to fly field safety.
飞场频率管控对飞行安全极为重要。
The result show that the system possesses the features of simple structure and excellent control characteristics etc without detecting the slip frequency of the rotor's magnetic field.
结果表明：不检测转子磁链的滑差频率矢量控制系统具有结构简单、控制性能优良等特点。
The Pulse Generators PGs are equipped to detect the rotor frequency of induction traction motors for the torque control in railway vehicle traction field.
铁道机车车辆牵引领域中的转矩控制是利用脉冲发生器（PG）来检测牵引感应电动机的转子频率。
A long field running of the medium-frequency power supply shows that the control system presented in this paper greatly improves its stability and quality.
长期的现场运行表明，这一控制系统大大提高了电源的可靠性及中频电源产品质量。
The current measurement and control system in a Low-frequency Magnetic Field is a comprehensive system of hardware and software, including two parts: current measurement and computer control.
低频电磁场电流测控系统包括电流测试和输出控制两个部分，由软件和硬件相互配合组成一个完整的计算机控制系统。
When go to a new fly field, it is not only a courtesy but also a safety measure to register your frequency and follow the frequency control procedures.
当您去一个新的飞场的时候，主动注册您的频率遵守频管规程不只是一种礼貌，更是保障安全的必要做法。
In the field weakening region, the torque capacity decreases with the increasing frequency, torque output capacity depends largely on the field-weakening control strategy.
在弱磁区，转矩能力随着频率的增加而减小，电机转矩输出能力很大程度上取决于弱磁控制策略。
The field-oriented control is a powerful tool for controlling the transient electromagnetic torque of the induction motor fed by a frequency converter.
磁场定向控制是控制由变频器供电的异步电机暂态电磁转矩的有效手段。
In the field of ac machines control, a strategy called variable frequency control is mostly used.
在交流调速领域中，应用最广的是变频调速技术。
In the field of ac machines control, a strategy called variable frequency control is mostly used.
在交流调速领域中，应用最广的是变频调速技术。
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